netdev - Re: [PATCH] netback: fix multi page ring size calculation.

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Date:	Thu, 26 Jan 2012 17:21:28 +0000
From:	Wei Liu <wei.liu2@...rix.com>
To:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:	<wei.liu2@...rix.com>, "jeremy@...p.org" <jeremy@...p.org>,
	"konrad.wilk@...cle.com" <konrad.wilk@...cle.com>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	Ian Campbell <Ian.Campbell@...rix.com>
Subject: Re: [PATCH] netback: fix multi page ring size calculation.

Sorry for the noise, I accidently sent the wrong patch.

Wei.

On Thu, 2012-01-26 at 17:20 +0000, Wei Liu wrote:
> ---
>  drivers/net/xen-netback/common.h |    4 ++--
>  1 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h
> index 477e5ab..f3d95b3 100644
> --- a/drivers/net/xen-netback/common.h
> +++ b/drivers/net/xen-netback/common.h
> @@ -60,9 +60,9 @@ struct xenvif_rx_meta {
>  #define MAX_BUFFER_OFFSET PAGE_SIZE
>  
>  #define NETBK_TX_RING_SIZE(_nr_pages)					\
> -	(__CONST_RING_SIZE(xen_netif_tx, PAGE_SIZE) * (_nr_pages))
> +	(__CONST_RING_SIZE(xen_netif_tx, PAGE_SIZE * (_nr_pages)))
>  #define NETBK_RX_RING_SIZE(_nr_pages)					\
> -	(__CONST_RING_SIZE(xen_netif_rx, PAGE_SIZE) * (_nr_pages))
> +	(__CONST_RING_SIZE(xen_netif_rx, PAGE_SIZE * (_nr_pages)))
>  
>  #define NETBK_MAX_RING_PAGE_ORDER 2
>  #define NETBK_MAX_RING_PAGES      (1U << NETBK_MAX_RING_PAGE_ORDER)


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